Iighi ibanshiiting subglcal device



:am wlwwa 1 3236 a 30 C)` l. s. SMH.- UG-H THAN'SMITI'HG SURGICAL QEYICE.

Arrucmon 'mio man. un.

Patent-ed Dec. 30,1919. l

:seno 1.1; emr., or emes-oo, rumors;

mennmxsmnmslimzougprvronj 'f i l To all 'whom ita'nay concern: 1'-

t ne if known that i, Ime ,1.5mm citiv'zenof the United States, and a resident. of" the city of Chicago, in the oounty of Cook und State of. Illinois, hee invented certin' neuv and useful Improvements in .Liglit- Transmitting Surgical Devices; and I do f v This linvention relates tonsurgical -device which is ,selfdlluminating as Well es trans g3g-ent -to permit observation therethrough.

e device 'as .heretofore generally. constructed ismade of metal, andis termed a material suoli as soi-mdf? and-'the salme'is mede in zzO number the particui'r. .use 'ofthe instrument.. l

of different sizes and shapes', according This invention, however, contemplates the eonst'rueti'on of e sound of e transparent less, nndso constructed and associ-ated wit an illuminating means "that the light is. transmitted therethrough vand projected from a,lightemittingsurfaoe,

- so that inthe use of the" device, ,explorer vic-' Y wlruloh observation'may be made. Rays -o tion of the passage of movement vof the 4'device bythe user is augmented greatly divin.' to the fa'ct that the f sound 1s' prowith ef longitudinel 'groove .sioni sound are invisible except .at the point of emission thereof from the 4sound so that e. clear vision .may be had directly 4:ilon the soundofobeots in its passage desir n is 1m bien nemen-wf .this amsn-tin to construct a, transparent surgical device 'fray/s from the device, and

a light trnsmittin by internlref'ection f the light on :its pas;

'lermitting a. olea-r vision of @Effects to 'be ed directly' It is also an object of this invention to surgical: device wherein the ,source 'of lig t iis-removed I from the point of 4projeetin of thelght yet a device nais.V semi mi., 115,117.'

light lfrom the devioeexcept at the or piojeoting'gsurfaoe provided lorthe'pur- It isval'so an object of (his invention. to constructs, sound .for surgical use oftransparent materiel designed tn -trnnsfer' Y, resiliation ofitetentent. 'Patented Dec, 12919'." L

light-therethrougli'hy internal reiection to.'

emit the light from a oer-#tain predetennined point thereof? 4It 4 1s 'furthermore sin object o f this invention to construct .a light transmitting surgit.

cal d e-vi'ce designed to permit the uw of other, surgical yfipiparatus.therewith, after insertion nf the device into the organs of the human body and serving by total internal 'reflection to transmit light from the proper source through to the end of .the device without emitting light through the side walls Aof the' transparent conductinv element, so that a. clear and unobstructed visionmaiy be had along said element sind' illumination 'of obf jects also 'obtained et the extreme end thereof adjacent .the liffht .emitting surfee;

It is nallv .a'n abject of this invention to construct a. light vtrvtnsmittin surgical dev-ice oftrnnspzirent material trough which the lightis caused to traverse in 'e tortuous path.- hut confined therein :throughout its len h by ,total internal retiection and emitted only at the endl thereof from?. li ht the ur ose.

`emitting or projecting surfaceV provided 0r T e invention'(-in `i3.preferred form) .iglight passing through the `.trenspo-rent illustrated vin .thedrawings andh'ereinater more fully described.V In the drawings:

Figure 1. is 'a fregmentaryside elevation" of a device-embodying the prineiples of my i lindrical casing hating threeded' `on its lower end an insulating `elosulre 2,;nnd. pro,

g.-.3. is a section tsden 'on 'line of videdin .its upper-end 'with 'slots 3, -a'n'd with H a. clanip 4, surrounding the cylindricalslob ted portion;of@"lieeasing.y pnrposeof Ht the 'clamp 4.1,. is. to hold @lesse-bly ttaehed into thevnpperfsitotted'. en'dxofithe fenng: 1,2. i

. .clear ifis'io'n may be haddireotl il herealong' for examination of objets Awit '.225 the'passa-ge o thodeirfice into the organszto l lio enniinedwithent-the projoetionp the v vide shown in Fig. 4;

'fthe eyianerimi @as of massively 101175 transparent lass 1-i'1e mber termed asound 'denoted by t reference 'numeral 5, Said memberis vcurved near each .of its endsas denoted b the reference numerals 6 und?,

respective y, and along `its Vstraight middle'- .portion isenlarged 'in diameter, and provided lwith a lon ,itudinzil' groove 8, in the outer periphe' t ereof, as -shown insection in Fig. 2.. -T tapered, as clearly shown in ig. 1, while the other end of said' transparent glasslmern'- ber, which fits intotheV -slcttedends of 'thel shown' in Fig'. 4, which-also affords a stop for the end of the-transparent light cond-uc*- in-g element 5. Said insulating plu ich is seated'h'upon-the closure cap 2, at the lower end of .thecasing 1, and lead wires- 13, are connected through said .plug 9 to the y bulb 10', and lead outwardly from theV casing to a suitable source of electric current supply. A handle 14, is held clamped around the c lindrical casingV 1, by means lof al f three ed 'screw '1.5, and .nut 'shown in Figs. 3 and 4.

The operation isas follows: 1n using the. instrument the elect-ric cur rent is switched on' so that the. electric bulb 10,'is illuminated, and. as a consequence the 16, as clearly -rays 'o light Vtherefrom enter into' and 'sound member, is emitte through'the side through thefiat endfsurface of the lon transparent 'sound' member and are refiec ,therethrough by total 'inter-nal "reflection, sind thus transmitted for projection at the cuter .tapered lend of the Vsound member. None of the vlight passing thro'u vinthe transparent walls thereof, owngto .the fact that the angle, of in 'cidence .of-the rays Striking the highly lpolished exterior surfaces or--sur faces yof sepa-ration between said transpar ent .element and .the air is 'greater than the critical :ingle between ,glass and-air and as acons'eqnence 'total internal rejiiect-ion thereA .portion 5, bf the sound mem e curved end rtion 7, is.

-its Velectric bulb` l0, are -normal yheld jagiin'stsaid ring 1'1, by a.. coiled Spring 12,..

4end of the Casin a Yco Subscribing rsaeoo. i

-of for' passage cftheiraysamnnd the curved portions' 6 land l',4 and. throng?? Gusti-aight the rays being. nally emitted nt the roduced tapered end of the trans' arent conducting element. Owing to the 'act that the sound member 5, 'isV provided with a longitudinal groove', an unobstructed vision ,is .had tberealon'g so ,that the passageY of the instiument into the organs-of the hitman' bod-y ma .be readily observed. The groove 8, forme in the. up er surface thereof per mits other sur 'c .il evices-to be ,used in connection'with't .e--sound member. Of course, although the transparent soundy member is -shown as reduced and rounded, any 'suitcble surface whatsoever may be provided at thin` point to refract the projection ofrays trans mitted, nsdesired. f

I 4 am aware that the details of construc tion may be varied -throu hv. a wide range Awithout depzirting from t e principlesof this inventiomnnd I Atherefore do not purpose limiting the'patent granted otherwise than nessitatcd by the prior art. f

I claim as my invention: l

l., A device of the .class described, con pris-ing a. cylindrical casing, a. stop ring therein, an insulating plug adaptedto beini v serted into said casing and limited in its movementtherein by -said ring, an electric lamp carried by said plug, anda transparent er end of said casing and also limited `in its movement therein byfsald ring.-

prising a cylindrical casing, a

inserted into sai-d'casing and limited in its "movement therein by said ring, an lelectric lamp carried'by 'said plug, ai 'closure for said casing disposed tween sai closure fand said'plug to 4retain the latter in posit-ion, and a `transparent light. 'con'dxicti'ng element in,

sertible into the other 4end of -saldcasingand light conducting elernent'in'sertible i-nte,the`. ot

izzifdevicc of the class described, oomsto ring therein, an insulating plug ada-pbedpto lbe ms.V

ed faring in said f 'also limited in its more-ment therein .by said l.

In testimony whereof have subscribed my naine in' .the presence of 'two 

